class_docstr: Base class for handling database operations.
  
  Args:
      name (str): The name associated with the database handler instance.
class_docstr_tok: ["Base","class","for","handling","database","operations",".","Args",":","name","(","str",")",":","The","name","associated","with","the","database","handler","instance","."]
code: def __init__(self, name: str, **kwargs):
      self.name = name
      self.connection = None
  
file_path: evadb/evadb/third_party/databases/types.py
imports: from dataclasses import dataclass
  from typing import Generator
  import pandas
  from sqlalchemy import MetaData, Table, create_engine
  from sqlalchemy.orm import sessionmaker
label_desc: Use image node_id 1 to create a new DBHandler object  with example: obj = DBHandler(name)